When the question arises "How many R-users there are?", the consensus seems to be that there is no valid method to address the question. The thread "R-business case" from 2004 can be found here:
https://stat.ethz.ch/pipermail/r-help/2004-March/047606.html

I did not see any material revision to that conclusion during the recent discussion of the New York Times article on the r-challenge to SAS.

Gmane tracks the number of r-help activity (I realize not what you asked for):
http://www.gmane.org/info.php?group=gmane.comp.lang.r.general

The distribution of r-packages is, well  ... distributed:
http://cran.r-project.org/mirrors.html

At least one of the participants in the 2004 thread suggested that it would be a "good thing" to track the numbers of downloads by package. I have not heard of any such system being installed in the mirror software and I see nothing that suggests data gathering in the CRAN Mirror How-to:
http://cran.r-project.org/mirror-howto.html

On the other hand I am not part of R-core, so you must await more authoritative opinion since a 5 year-old thread and amateur speculation is not much of a leg to stand on.

There are lexicographic packages for R. One approach to a de novo analysis would be to do some sort of natural language analysis of the r-help archives counting up either package names with non-English names or close proximity of the words "library" or "package" to package names that overlap the 30,000 common English words. That would have the danger of inflating counts of the packages with the least adequate documentation or a paucity of good worked examples, but there are many readers of this list who suspect that new users don't look at the documentation, so who knows?

--
David Winsemius


On Mar 7, 2009, at 2:57 PM, Jeroen Ooms wrote:


I would like to get some idea of which R-packages are popular, and what R is used for in general. Are there any statistics available on which R packages are downloaded often, or is there something like a package-survey? Something
similar to http://popcon.debian.org/ maybe? Any tips are welcome!

-----
Jeroen Ooms * Dept. of Methodology and Statistics * Utrecht University

Visit http://www.jeroenooms.com www.jeroenooms.com to explore some of my
current projects.






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